Governor for marine engines.



No. 867,111 PATENTBD SEPT. 24, 1907.

A. GOATES & H. W. HAGKETT. GOVERNOR r011 MARINE mamas;

APPLICATION FILED PEB- 6, 1907.

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UNITED STATES PATENT onnron.

ALFRED COATES, OF CLIFTON HILL, AND HENRY WILLIAM HACKETT, OF CARLTON,

VICTORIA, AUSTRALIA.

GOVERNOR FOR MARINE ENGINES.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed February 6,1907. Serial No. 356,095.

To all whom it may concern:

Be it known that we, ALFRED Coarns and HENRY WILLIAM HACKETT, subjects of the King of Great Britain and Ireland, and residing at 365 Wellington street, Clifton Hill, and 15 Grattan street, Carlton, respectively, both in the county of Bourke, State of Victoria, and Commonwealth of Australia, have invented a certain new and useful Improved Governor for Marine Engines, of which the following is a specification.

Our invention relates to the governor used to prevent marine engines from racing when the propeller becomes unsubmerged. In the past a variety of devices have been used to this end, but with our combination a simple and effective apparatus is produced which is cheap in first cost, easily applied, and not liable to derangement. In addition to which it permits of a perfect adjustment whereby it can be adapted to varying degrees of immersion of the vessel due to cargo or other reasons.

Referring to the drawings which form a part of this specification Figure 1 represents a side elevation of our invention. Fig. 2 is a sectional view of the upper end of the pendulum and its attachments. Fig. 3 is a sectional view of the adjustable contact pin. Fig. 4 is a view looking. on the after portion of our apparatus. Fig. 5 is a view on a reduced scale of an installation in which our governor is used.

Similar letters of reference indicate similar or corresponding parts where they occur in the several views.

Our invention includes a forked hanger A. This, by a pivot pin B, hereinafter called the upper pivot pin, is pivoted (see Figs. 4 and 5) to an athwartship deck beam C or to any other depending article. The axis of the said upper pivot pin B is parallel with the forward movement of the ship. Extending from the lower end of the forked hanger A is (see Figs. 1, 4 and 5) a threaded portion D having a nut upon its lower end.

To the threaded portion D before referred to is attached a lug E. The said lug E is integral with the top portion of a quadrant piece ,F. In the said quadrant piece F is (see Fig. 1) a circumferential slot G. Around the outer portion of this slot G are graduations H. Near the bottom of the said quadrant piece and in the center of the same is attached a lower pivot pin J. The plane of the said lower pivot pin 1 is at right angles to the upper pivot pin B.

Movable along inside the circumferential slot G is (see Fig. 3) an adjustable contact pin K. One end of this protrudes upon one side of the said quadrant piece and is locked by a wing nut L. From the other overhanging end of the said pin protrudes (see Fig. 1) a pointer M which points to the said graduations H. Around the said adjustable contact pin K is an insulating piece N. Around the outside of the insulating piece is a sleeve 0. The said sleeve 0 is retained upon the contact pin K by the holding screw P and insulating washer Q. Protruding from the sleeve 0 is a terminal screw boss R. In this is a terminal screw S from which a wire T leads to an electro magnet hereinafter mentioned. Around the said sleeve 0 is (see Fig. 3) a threaded portion U upon which is threaded a contact ring V. This can be easily cleansed, removed or replaced.

To the lower pivot pin J ispivoted an intermediately pivoted pendulum. The upper end X of this has thereon (see Fig. 2) the insulating piece N. Around this insulating piece N is placed a cap piece W. From this cap piece protrudes the terminal screw boss R in which is a terminal screw S. From the terminal screw S protrudes a wire Y which leads to an electro magnet hereinafter described. A portion of the said cap piece W is (see Fig. 2) threaded as at U to accommodate the contact ring V. To the lower end Z of the said pendulum is adjustably attached a weight A.

The wires T and Y lead to an electro magnet B (see Fig. 5). The core C of this is beneath the armature end D of an intermediately pivoted lever. The said lever is pivoted by a pivot pin E and the other end F of the said intermediately pivoted lever, the stop valve end, is situated beneath a steam stop valve G Instead of the forked hanger A being separate from the quadrant piece F it may be integral therewith.

We do not wish to be understood as limiting ourselves to the exact details of construction and arrangement described since various slight and immaterial modifications maybe made therein without departing from the spirit and the scope of our invention.

The cycle of operations with our invention is as follows.-When the ship rolls our quadrant and pendulum swing upon the upper pivot pin B. Whereas when the vessel pitches, it swings upon the lower pivot pin. The intermediately pivoted pendulum always remains in a vertical plane. When the stern of the vessel rises as shown in Fig. 5 the adjustable contact pin K approaches the upper end X of the intermediately pivoted lever. The said adjustable contact pin K can be moved around the circumferential slot G and locked in any desired position by the wing nut L. When the contact ring V upon the adjustable contact pin K makes contact with the contact ring V upon the upper end of the pendulum an electric circuit is completed. The core C becomes magnetized and attracts the armature end D of the intermediately pivoted lever. The steam stop valve end F of the intermediately pivoted lever lifts the valve of the steam stop valve G and the steam is cut off. Under normal conditions the said valve is always open and steam passes it unobstructed. Whereas when the stern of the vessel rises so" does the steam stop valve end of the intermediately pivoted lever and it thereby partially or wholly closes the valve. The said valve is closed or partially closed during the whole time that the two contact rings V are in contact with each other.

Having now described our invention, what we claim as new and desire to secure by Letters Patent is.

1. In a governor for marine engines, the combination of a slotted member suspended to swing transversely of the ship, an adjustable bolt secured in the slot in said member, a contact piece attached to said bolt but insulated therefrom, a pendulum lever suspended from said member adapted to swing longitudinally of the ship, and an elec trical contact piece carried by said pendulum lever but insulated therefrom; with a controlling valve, electrically actuated means for operating said valve, an electrical cir cuit including said controlling means and the said contacts, the circuit being closed when the said contacts impinge.

2. In a governor for marine engines, the combination of a slotted member suspended to swing transversely of the ship, a pendulum lever suspended from said member and adapted to swing longitudinally of the ship, an electrical contact piece adjustably secured in the slot in said memher but insulated therefrom, and a second electrical contact piece connected to said pendulum lever and adapted to be impinged upon the first contact by the swing or the pendulum; with a steam valve, and electro-magnetic connections for controlling said valve, electrical connections be tween the opposite poles of such magnets and the contact on the pendulum and member respectively.

3. In a governor for marine engines, the combination of a quadrant member pivoted to swing transversely of the ship and having an arcshaped slot, :1 bolt adjustably secured in said slot, an electrical contact mounted 011 said bolt but insulated therefrom, a pendulum lever pivoted on said member and having a weighted lower end and adapted to swing longitudinally of the ship, and a contact piece secured to the upper end of said lever but insulated therefrom, said contacts being adapted to be impinged by the swing of the pendulum with a steam valve, electrically actuated means for controlling said valve, and electrical connections between said actuating devices and the contacts on the bolt and pendulum lever respectively 4. In a governor for marine engines, the combination of, a member suspended to swing transversely of the ship and having an arc-shaped graduated slot, an adjustable electrical contact mounted in said slot, a pendulum lever suspended from said member to swing longitudinally of the ship, and an electrical contact carried by said pendulum lever but insulated therefrom; with a controlling steam valve, electro-mugnetic means for operating said valve, and electrical connections between said controlling means and the contacts on the member and pendulum lever, the circuit being closed when the said contacts impinge.

5. In a governor for marine engines, the combination of a quadrant member pivoted to swing transversely of the ship and having an arc-shaped slot, a bolt adjustably secured in said slot, an electrical Contact mounted on said bolt but insulated therefrom, a pendulum lever pivoted on said member and adapted to swing longitiulinally of the ship, and having a weighted lower end, a contact; piccc secured to the upper end of said lever but; insulated therefrom; with a steam valve, an electro-magnetic device for operating said valve, electrical connections between the said contacts and said electro-magnetie device whereby the latter is energized when the circuit is closed by the impingement of the contacts.

In testimony whereof we atiix our signatures in the presence of two subscribing witnesses.

ALFRED COA'LES. HENRY WILLIAM IIACKET'I. Witnesses EnwIN IIIILLIrs, CECIL M. SLAs'rmmz. 

